75pcs 1/2-13 X 2-1/2 Inch Hex Cap Screws and Hex Bolts Set with Matching Nuts - 316 Stainless Steel - Free USA Shipping - Perfect for Construction, Machinery, and DIY Projects

Step up to Type 316 stainless steel for superior corrosion resistance compared to�18-8�stainless�steel.�It contains�molybdenum,�which increases corrosion resistance to chlorides and�sulfates.�Screws may be mildly�magnetic.�They have a Class 2A thread�fit,�minimum Rockwell hardness of�B70,�and minimum tensile strength of�70,000�psi.�Dimensions meet ASME�B18.2.1.�Screw length is measured from under the�head.